tabs woot woot
cars is now in a modal.
this means that rick is once again a single page app. yay!
also, styling for xs and small browser windows
shorten alert messages
shorten alert messages
Merge branch 'beta_2' of https://github.com/alanchiao/zbt-rush-app into base_app
ui changes as requested by alan
allow editing of formerly empty fields for cars
use client time for gps pings always
map takes accuracy and sort of does things with it
editing message for driver on completion
Merge branch 'beta_2' of https://github.com/alanchiao/zbt-rush-app into base_app
Merge branch 'base_app' into beta_2

Conflicts:
	rush_app/lib/router.js
make editing driver "when done" message not look shitty
Merge branch 'beta_2' of https://github.com/alanchiao/zbt-rush-app into base_app
Merge branch 'base_app' into beta_2
Merge branch 'base_app' into beta_2
extension of contenteditable and empty field fix
passengers is computed on frontend to prevent concurrency bugs
Merge branch 'beta_2' of https://github.com/alanchiao/zbt-rush-app into base_app
driver when done message bug fix and passengers is now front end (concurrency bugfix)